DotCover Shows Linked Files As Uncoverd

When an existing covered code file from a project “A” is added to project “B” using “Add as link,” the file shows in project “B” as uncovered. There seems to be no way to exclude it from coverage and no way to write a unit test to cover it.  Ideally, it shouldn't show up at all under project “B” since it's a linked file that's covered in the original project ("A").